The problem is as old as permafrost itself: I remember reading as a child about problems with permafrost stability (or rather lack thereof) when they were build

The problem is as old as permafrost itself: I remember reading as a child about problems with permafrost stability (or rather lack thereof) when they were building БАМ (Baikal-Amur Mainline). They'd lay tracks only to watch them be torn by permafrost movement a year or two (or sometimes a month) later. Somehow they did figure out how to make things stable enough for the railway to be operational. It is currently being upgraded to double the capacity. https://en.wikipedia.org/wiki/Baikal%E2%80%93Amur_Mainline https://en.wikipedia.org/wiki/Baikal%E2%80%93Amur_Mainline